Review on 🚗 aceyoon FM Transmitter Car Charger QC 3.0 Max 3.4A 2 USB Bluetooth 5.0: Wireless FM Radio Car Receiver with LED Backlit, Hands-Free Calling & Hi-Fi Music for Smartphones/Audio Players by Daniel Warren

Easy to connect and play, connect to Bluetooth immediately after detection. Reconnect when you're back in range. So far I've been impressed with this compact device and switch between two Bluetooth devices at the same time, pausing one while the other plays. Volume control and forward-backward controls to quickly skip to the next song. There is still some "swelling" in the background, but it's very minimal and only shows up when the engine is off. Real rating, 5 stars.